Lemon Cuckoo Bumble Bee

Bombus citrinus · Order: Hymenoptera · Family: Apidae

Also called: Lemon Cuckoo Bumblebee

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Lemon Cuckoo Bumble Bee
Photo: Steven J. Røste, CC BY

Lemon Cuckoo Bumble Bee (Bombus citrinus) is a social parasite that lives in the nests of Bombus impatiens and Bombus vagans. It is native to eastern North America, found from eastern Canada through the Northeastern United States and into parts of the Midwest and Southeast.

Source: Wikipedia

How to recognize it

The thorax is mainly yellow, extending down the lower sides and sometimes to the fourth or fifth abdominal segment. Wings are slightly opaque, ranging from reddish-brown to brown-black and may appear yellowish when covered in fine hairs.

Source: Wikipedia

Where it lives

It occurs in the Northeastern region of North America.

Source: Wikipedia

Where it comes from

The species originated in the Eastern Nearctic about two million years ago and remains native to eastern North America.

Source: Wikipedia

Where it is found in the US

Recorded in 36 of 51 states and DC. Most records: Minnesota, Wisconsin, New York, Michigan, Illinois, Ohio, Vermont, Indiana.

Darker = more records. Counts are museum and citizen-science records, not population size.

Source: GBIF

Status: native in North America; native in Canada; native in United States. Source: iNaturalist

Months it is reported in the US

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Source: GBIF

More photos

Same family (Apidae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Bombus_citrinus

Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia

Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.